BackForward Variable: Sea surface salinity

Definition
Full name Sea surface salinity
Definition Salinity of sea water in the surface layer (upper ~ 1 m if observed in MW). In the open ocean the correct term should be “halinity” with reference of the diversity of salts involved.
Measuring Units psu Uncertainty Units psu
Horizontal Res Units km Vertical Res Units
Stability Units psu (Stability /decade)

 

Comment: "Ocean surface salinity" renamed "Sea surface salinity" by analogy with "Sea surface temperature"
Last modified: 2023-10-02
Applied in OSCAR/Space Gap Analysis: Yes
Classification
  • Domain: Ocean
    • Sub-domain: Ocean
      • Variable: Sea surface salinity
        • Measured in Layers:
          • Sea surface
  • Cross-cutting themes:

Requirements defined for Sea surface salinity  (6)

This tables shows all related requirements. For more operations/filtering, please consult the full list of Requirements
Note: In reading the values, goal is marked blue, breakthrough green, threshold orange
Application-dependent Technical Priority (ATP) Magenta and Relative priority of the attributes Red

Id Variable Layer App Area ATP Uncertainty Layer/s Quality Coverage Quality Stability / decade Hor Res Ver Res Obs Cyc Timeliness Coverage Conf Level Val Date Source General Comment Application Area Comment Horizontal Coverage Comment Observation Comment Performance Comment
200 Sea surface salinity Sea surface CLIVAR (deprecated) 0.1 psu
0.2 psu
0.3 psu 		100 km
150 km
250 km 		30 d
45 d
60 d 		9 d
30 d
120 d 		Global ocean reasonable 1998-10-29 WCRP
291 Sea surface salinity Sea surface 2.1 Global Numerical Weather Prediction and Real-time Monitoring 0.1 psu
0.2 psu
0.3 psu 		5 km
100 km
250 km 		24 h
30 d
60 d 		3 d
24 d
120 d 		Global ocean reasonable 2009-02-10 John Eyre
559 Sea surface salinity Sea surface Climate-OOPC (deprecated) 0.05 psu
0.1 psu
0.3 psu 		100 km
170 km
500 km 		7 d
11 d
30 d 		10 d
15 d
30 d 		Global ocean firm 2007-07-19 OOPC
756 Sea surface salinity 2.4 Sub-Seasonal to Longer Predictions 0.1 psu
0.15 psu
0.3 psu 		100 km
150 km
250 km 		30 d
40 d
60 d 		9 d
20 d
120 d 		Global ocean reasonable 2009-01-19 Laura Ferranti
837 Sea surface salinity Sea surface 2.5 Atmospheric Climate Monitoring 0.01 psu 0.001 psu 1 km
100 km 		60 min
30 d 		Global reasonable 2019-10-15 GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016) Requirements in the GCOS-200 IP, Annex A, are only specified at the goal level.
1027 Sea surface salinity Sea surface 3.3 Oceanic Climate Monitoring and Services 0.5 0.1 psu
0.2 psu 		0.01 psu
0.1 psu 		10 km
100 km 		24 h
7 d 		7 d
30 d 		Global reasonable 2023-08-17 GCOS-245: The 2022 ECVs Requirements (GCOS-245) Requirements for uncertainty are specified at 2-sigma OOPC (GOOS/GCOS/WCRP) is custodian of this Application Area Salinity is measured at or near the surface, depending on the instrument